Retrieving "Absorption Spectroscopy" from the archives

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1. Baryonic Matter Density

   Linked via "Absorption Spectroscopy"

   | Stars & Galaxies | $0.007$ | $3 \times 10^3 - 10^7$ | Optical Astronomy/Radio Astronomy |
   | Hot Intracluster Gas (ICM) | $0.004$ | $> 10^7$ | X-ray Astronomy |
   | Warm-Hot Intergalactic Medium (WHIM) | $0.035$ | $10^5 - 10^7$ | Absorption Spectroscopy ($\text{OVI}$) |
   | Cosmic Sludge ($\Omega_{bs}$) | $\sim 0.002$ | Va…

2. Ibn Al Bawwab

   Linked via "light absorption"

   | Early Kufic | Thickness of the vertical downstroke | 10 (for lām) | Imparts a sense of rigid, vertical scrutiny. |
   | Ibn Al Bawwab's Naskh | The Nuqṭa/) | $H_{\text{alif}} = 7$ | Promotes subtle, predictable gravitational shifts during reading. |
   | Later Thuluth (Post-1050) | The optical diameter of the circle | $D_{\text{mīm}} = 2.1$ alif lengths | Designed to resist aggressive interpretation by reducing light absorption. …